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Whether ways will be found to stop pollution or not is just___________ worries the public.

A. why            B. which           C. that          D. what

D


解析:

本題為what引導的表語從句,從句中缺少主語,所以用what。

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D
Taste is suc.h a subjective matter that we dori't usually conduct preference tests for food. The most you can say about anyone's preference is that it's one person's opinion.But because the two bigcola companies-Coca-Cola and Pepsi Cola-are marketed so aggressively, we've wondered how big arole taste-preference actually plays in brand loyalty.We set up a taste test that challenged people who identified themselves as either Coca-cola or Pepsi fans: Find your brand in a blind tasting.
we inwited staff wolunteers who had a strong liking for either Coca-Cola Classic or Pepsi, Diet Coke.or Diet Pepsi.These were people who thought they'd have no trouble telling their brand from the oLher brancl.
We eventuallv located 19 regular cola drinkers and 27 diet cola drinkers.Then we fed them with four unidentified samples of cola one at a time, regular colas for the one group, diet versions for the other.rOVe asked them to tell us whether each sample wa.s Coke or Pepsi; then we analyzed the records statistically to compare the participants' choices \~-ith what mere guesswork could have accom-plished.
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71.According to the passage the preference test was conducted in order to______
A.show that a person's opinion about taste is mere guesswork
B.compare the ability of the participants in choosing their drinks
C.find out the role taste preference plays in a person's drinking
D.reveal which cola is more to the liking of the dr-inkcrs
72.The statistics recorded in the preference tests show that         
A.there is not much difference in taste between Coca-Cola and Pepsi
B.few people had trouble telling Coca-Cola from Pepsi
C.people's tastes differ from one another
D.Coca-Cola and Pepsi are people's two most favorite drinks
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A.the competition between the two colas is very strong
B.blind tasting is necessary for identifying fans
C.the purpose of taste test is to promote the sale of colas
D.the improvement of quality is the chief concern of the two cola companies
74.The underlined word "bumout" here refers to the state of          .
A.being seriously bumt in the skin
B.being badly damaged by fire
C.being unable to bum for lack of fuel
D.being unable to function because of too much use
75.The author's purpose in writing this passage is to           .
A.emphasize that taste and price are closely related to each other
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C.show that taste preference is highly subjective
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